How does snow cover influence the air temperature during the day and night?

Question

How does snow cover influence the air temperature during the day and night?

Answer 1

Snow is a good reflector of sunlight and a fairly good radiator of long-wave radiations. So,during day time,it reflects most of the sunlight,only a small amount being absorbed.This absorbed heat is used only to melt the snow and it does not raise its temperature.Hence the air temperature also does not raise.In the night, the snow gives out the absorbed heat.Hence the air temperature is not affected much both in the day and the night.Due to this snow cover only, polar regions experience always extremely low temperatures.

Answer 2

Snow reflects back most of the light during the day keeping temperatures cool....snow acts like a blanket at night....